FIELD: keyboards for telephone sets and similar devices. SUBSTANCE: keyboard for stationary and mobile telephone sets, radiophones, remote-control panels, and the like has device for actuating step-by-step symbol input facility accommodated within case or mounted on case and facility for acknowledging step-by-step chosen symbols. Only one facility is provided for step-by-step input of symbols; facility for acknowledging chosen symbols has step- by-step input facility or separate facility, this facility being actuated by means of same hand that holds handset. Step- by-step input control facility has wheel which is free to turn relative to case; this turning wheel (1") may carry symbols or it may be engageable with scale that carries symbols. EFFECT: facilitated use of keyboard. 6 cl, 8 dwg
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